Upload image from URL to Firebase Storage

Question

I\'m wondering how to upload file onto Firebase\'s storage via URL instead of input (for example). I\'m scrapping images from a website and retrieving their URLS. I want to

Answer 1

This answer is similar to @HalesEnchanted's answer but with less code. In this case it's done with a Cloud Function but I assume the same can be done from the front end. Notice too how createWriteStream() has an options parameter similar to bucket.upload().

const fetch = require("node-fetch");

const bucket = admin.storage().bucket('my-bucket');
const file = bucket.file('path/to/image.jpg');

fetch('https://example.com/image.jpg').then((res: any) => {
  const contentType = res.headers.get('content-type');
  const writeStream = file.createWriteStream({
    metadata: {
      contentType,
      metadata: {
        myValue: 123
      }
    }
  });
  res.body.pipe(writeStream);
});